JPH0719123Y2 - Illuminated slide type variable resistor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an illuminated slide type variable resistor.

[Conventional technology]

FIG. 5 is an exploded perspective view of only a knob portion of a conventional illuminated slide type variable resistor.

In the figure, 1 is a knob, and LED2 is provided at the tip of the knob 1.
The storage part 3 is provided, and the bottom part of the storage part 3 is
An insertion hole 5 for the lead wire 4 of the LED 2 is provided, and the LED 2 is stored in the storage portion 3 in a state where the lead wire 4 is inserted into the hole 5.

[Problems to be solved by the device]

By the way, when integrally molding the knob 1 as described above with a resin, the molding step of the knob 1 and the step of forming the hole 5 through which the lead wire 4 is inserted coexist. During molding, the mold has a structure that can be moved in the left-right direction, but the hole forming process has a structure that can move in the up-down direction, which requires a complicated mold, resulting in an increase in mold cost.

The present invention is intended to solve the above-mentioned conventional problems, and an object of the present invention is to provide an illuminated slide type variable resistor having a low die cost at the time of knob molding.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides an illuminated slide type variable resistor in which an LED housing portion is formed at a tip of a knob, and an LED lead wire insertion hole is provided at a bottom portion of the housing portion. In the insertion hole, a pair of opposing side wall portions are formed by alternately forming a wall portion and a cavity portion, and the cavity portion is arranged on the other side wall portion facing the wall portion of one side wall portion. It is configured.

[Action]

According to the present invention, it is possible to form a mold in which protrusions are alternately formed vertically from the opposite side surfaces of the knob toward the inside and the LED lead wire insertion hole is formed between the protrusions. For example, the mold structure only needs to be movable left and right, and the mold cost is lower than in the past.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 4 are explanatory views of an embodiment of the present invention. FIG. 1 is a front view (slider is omitted) of a slider receiver integrally formed with a knob, and FIG. 2 is a rear view of the same. 3, FIG. 3 is a sectional view taken along the line CC of FIG. 1, and FIG. 4 is an explanatory view showing a mold for forming the knob.

In FIG. 1, 10 is a knob, 10a is a slider receiver, and 11 is an LED.
In the 12 storage parts, the first part is provided inside both side plates 13 of the storage part 11.
Protrusion 14 located below the direction perpendicular to the plane of the drawing
And the upper protrusions 15 are alternately formed, and an insertion hole 17 for a lead wire 16 of the LED 12 is formed between the upper protrusion 15 and the lower protrusion 14. That is, the insertion hole 17 has a pair of opposing side wall portions formed by alternately forming the protrusions (wall portions) 14 (15) and the void portions 25 (26), and the protrusion (wall portion) of one side wall portion. )14
A cavity portion 26 (25) is arranged on the other side wall portion opposite to (15). Reference numerals 18 and 19 denote connecting pieces that are erected between the front and back surfaces of both side plates 13 and 13 and are formed with a slight shift in the upper and lower directions. , The upper part of the pillar 20 forms a pedestal 21 of the LED 12 when the LED 12 is stored in the storage portion 11, and the insertion hole 17 is provided between the pillar 20 and both side plates 13 and 13 between both connecting pieces 18 and 19. Holes 22 and 23 that communicate with each other and insert the lead wire 16 are formed. These insertion holes 22,23
As shown in FIG. 3, the pair of opposing side wall portions are formed by alternately forming protrusions (wall portions) 14 (15) and void portions 25 (26), and the protrusions on one side wall portion ( A cavity 26 (25) is arranged on the other side wall opposite to the wall 14 (15). Incidentally, 24 is a support plate for connecting the both side plates 13, 13.

Next, the structure of the mold for forming the protrusions 14 and 15 on the side plate 13 on the right side of the knob 10 will be described with reference to FIG.

In FIG. 4, the mold A and the mold B approach each other in the left-right direction, and the resin is injected into the spaces of the molds A and B, and the upper projection 15
And a lower protrusion 14 are formed, and an insertion hole 17 for a lead wire 16 is formed between the both protrusions 14 and 15. In exactly the same manner, the upper side projection 13 and the lower side projection 14 are alternately formed vertically inwardly on the left side plate 13 in FIG. Insertion hole 1 for lead wire 16 of LED 12
7 is formed.

Then, in order to insert the lead wire 16 of the LED 12 into the knob 10, an insertion hole 17 formed between the upper and lower protrusions 15 and 14 is formed.
After the lead wire 16 of the LED 12 is inserted and the LED 12 is inserted between the side plates 13 and 13, the tip ends thereof are inserted into the holes 22 and 23 and extend downward. Then, the main body of the LED 12 is placed on the pedestal 21 on the upper surface of the column 20.

According to the above-described embodiment of the present invention, the upper and lower protrusions 15 and 14 are alternately formed on the both side plates 13 and 13 of the housing 11 of the LED 20 toward the inner side. LED12 between 14
If the insertion hole 17 of the lead wire 16 is formed,
As shown in the figure, since the knob 10 provided with the insertion hole 17 for the lead wire 16 is formed only by the molds A and B movable in the left-right direction,
The structure of the mold is simpler than the conventional one.

[Effect of device]

According to the present invention, as described above, the lead wire insertion hole of the LED can be provided at the same time when the knob is formed only by moving the mold A and the mold B in the lateral direction. The cost of the mold at the time of molding can be reduced.

[Brief description of drawings]

1 to 4 are explanatory views of an embodiment of the present invention. FIG. 1 is a front view of a slider receiver (a slider is omitted) in which a knob is integrally formed, and FIG. 2 is a rear view of the same. 3, FIG. 3 is a cross-sectional view taken along the line CC of FIG. 1, and FIG. 4 is an explanatory view showing a mold forming a knob. FIG. 5 is an exploded perspective view of a knob portion of a conventional illuminated slide type variable resistor. 10 …… Knob, 11 …… Storage section, 12 …… LED, 13 …… Side plate, 14
...... Lower protrusion, 15 …… Upper protrusion, 16 …… Lead wire, 17
...... Insertion hole.

Claims (1)

[Scope of utility model registration request] 1. An LED storage portion is formed at the tip of the knob,
In the illuminated slide type variable resistor having an insertion hole for an LED lead wire provided in the bottom portion of the housing portion, the insertion hole has a pair of side walls facing each other, the wall portion and the cavity portion being alternately formed. The illuminated slide variable resistor is characterized in that a cavity is arranged on the other side wall portion opposite to the one side wall portion.